156-315.81.20 Gateway Deployment and Upgrades Practice Question
An administrator is preparing to upgrade a Security Gateway from R80.40 to R81.20 using CPUSE. Before starting the upgrade, the administrator wants to ensure that the gateway meets all prerequisites. Which two actions should the administrator perform? (Choose two.)
⚠ Common exam trap
The trap here is thinking that disabling security features or altering network settings is necessary for a smooth upgrade, when in fact these actions can cause more harm than good.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Run the Pre-Upgrade Verifier to check for potential issues.
Before upgrading, it is essential to verify sufficient disk space and run the Pre-Upgrade Verifier. These steps help identify and mitigate potential issues, ensuring a successful upgrade. Disabling blades, uninstalling hotfixes, or changing IP addresses are not required and could introduce unnecessary risks or complications.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Run the Pre-Upgrade Verifier to check for potential issues.
Why this is correct
The Pre-Upgrade Verifier is a tool that analyzes the current configuration and checks for compatibility with the target version. It identifies potential issues such as deprecated features, unsupported configurations, or missing hotfixes. Running it before the upgrade helps prevent failures and ensures a smooth transition to R81.20.
- ✗
Disable all blade protections to prevent interference with the upgrade.
Why it's wrong here
Disabling blade protections is not a prerequisite and could expose the network to threats during the upgrade. CPUSE handles the upgrade process without requiring blades to be disabled. In fact, some blades may need to remain active to maintain security. The upgrade process itself manages necessary service restarts.
- ✓
Verify that the gateway has sufficient disk space for the upgrade.
Why this is correct
CPUSE requires adequate free disk space to download and install the new package, as well as to create a backup for potential revert. Insufficient disk space is a common cause of upgrade failures. Checking available space ensures the upgrade can proceed without interruption and that rollback is possible if needed.
- ✗
Manually uninstall all hotfixes to ensure a clean upgrade.
Why it's wrong here
Hotfixes should not be manually uninstalled before an upgrade. CPUSE manages hotfixes and will handle them appropriately during the upgrade process. Uninstalling hotfixes could introduce vulnerabilities or instability. The upgrade package includes the necessary components, and the Pre-Upgrade Verifier will flag any hotfix-related issues if they exist.
- ✗
Change the gateway's IP address to avoid conflicts during the upgrade.
Why it's wrong here
Changing the IP address is not a prerequisite and could disrupt connectivity and management access. The upgrade process does not require an IP change. In fact, altering network settings before an upgrade can cause management communication failures. The IP address should remain stable throughout the upgrade.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Check Point exam blueprint
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